7x18650 in paralel

[WarHawk-AVG]

@danilothd

@WarHawk-AVG it must be 100% waterproof… and shockproof too!! the PETZL DUO is good solution but original one use halogen light and with one pack of batteries it can go only one hour… it was originally one halogen and 14LED but they are too weak… i Want to build PETZL DUO with 2 cree…

nice, very intersting

Several other discussion

My Petzl Duo mods

Quite some time ago when I discovered the world of power leds I wandered why Petzl hasn't made any mod for their duo like they made their "moduleds" 3, 5, 8 and 14. So i decided I give it a try. [image] Duo with default halogen buld and moduled 14 I got a kit from ebay with Q5 led, 15deg lens and a driver suitable for 4AA. I was pleased with the output and. It took several itterations and my first duo is now just an empty shell. But I learned what can be done and my next goal was to make an…

GTL Headlamp - quick review and mod - updated

Ok, the biggest thing you can get from this post is - don't buy this headlamp unless you want to spend time modding it. The cell is crap, the beam is a TIGHT spot and the output is too low for useful spill. I paid $16 from meritline. There are gray, 2x18650 and different emitter tints available. The second biggest thing is, if you want a headlamp w/ crazy throw and super wide/even spill...and you don't mind cobbing it together, this is a decent host. I dare say, getting the same (modded) sp…

Beginner DIY headlamp idea / possible project

Hi, I’m new here, but so far I’ve found a lot of great info and thought I could get some help. I’d like to build a headlamp for caving mostly. I already own a Spark ST6 nw460, which is excellent but I’d like more light and have an itch for a DIY project. I also recently bought a XinTD C8 with a neutral white XML T6 and the tint is just perfect, making the spark seem really yellow and dim. So here’s what I had in mind. I found the following enclosure, which seems ideal for cutting into two part…

Googled the PETZL and came across this (DIY caving light)

http://www.dola.hu/fejlampa/index_en.html

Caving Headlamp